School Odor Removal

Remove school smells, classroom and laboratory odors at their source with ozone.

The OdorFree is an excellent school odor eliminator that will remove school odors and also kill microorganisms such as mold and mildew. This results in a fresh smelling facility and a much better learning environment.

Schools and classrooms develop odors as a result of being used for extended periods by a variety of occupants. Even after rooms have been cleaned by the janitorial staff, stubborn odors can linger and be difficult to remove. A residual odor can call into question whether the room has been properly cleaned by staff.

Solution: The best way to eliminate these odors is to run the OdorFree unit at a high level while the facility is vacant. Let the last person who leaves at night turn the unit on and allow the OdorFree to spend several hours oxidizing the odors and reducing micro organism count. The unit should be turned off a couple of hours before the facility re-opens. As a result, both students and faculty will enjoy a fresh smelling facility.

Note: Some rooms have their own separate A/C unit. However, if there is central system with a return vent in the room to be treated, it is best to tape the return duct closed with plastic or paper, and and also close the supply vents during treatment. This will keep the O3 inside that particular room for odor elimination and not let it be circulated into other rooms.

The O3 creates a clean, sanitizing smell which dissipates within about an hour. There is no need to mask odors with perfume like deodorizers, which some people find objectionable and others may be allergic to.

Recommended Model for School Odor Removal

The Villa 1000 is by far the most popular model for school odor removal. One reason is the convenience of the 1 to 12 hour timer that can be set to operate while the facility is closed. It will eliminate school odors in large size spaces but can also be used to treat smaller spaces as well. This model is designed for spaces that are unoccupied for several hours or longer such as Classrooms, Cafeterias, Lounges, Laboratories and other well used areas.

The Villa 1000 has a variable ozone output control that will cover up to 4000 sq ft and a timer that can be set from 1 to 12 hours to automatically turn the unit off when the sanitizing is completed. In addition, a "Hold" selection on the timer allows for extended treatment (until it is manually turned off) in order to eliminate more deeply ingrained odors. This unit can also be used for smaller spaces if rapid odor removal is needed.More details...

The OdorFree Suite 700 can be used remove school smell in moderate size classrooms and labs. This model has a variable output control that will cover up to 2000 sq ft and a 1 to 60 minute timer that will automatically turn the unit off when the sanitizing is completed. There is also a "Hold" selection on the timer so the space can receive ozone treatment for extended periods (until it is manually turned off) in order to eliminate deeply ingrained odors.

Note: Some customers find the 1 to 12 hour timer on the Villa 1000 to be more convenient for longer term treatment because it can be set to stop treatment a couple of hours before the space is reoccupied.

The OdorFree Hotel 350 can be used in small classrooms to remove school smell. This model has a variable output control that will cover up to 800 sq ft and a 1 to 60 minute timer that will turn the unit off when the sanitizing is completed. There is also a "Hold" selection on the timer so the space can be sanitized for extended periods (until it is manually turned off) in order to eliminate deeply ingrained odors.

Note: Some customers find the 1 to 12 hour timer on the Villa 1000 to be more convenient for longer term treatment because it can be set in the evening to cut off treatment a couple of hours before the space is reoccupied.

I am a realtor and also manage rental property. We purchased the OdorFree to eliminate odors in the condominiums we rent near the University of Tennessee. It is amazing how effective the unit is at getting rid of smoke odor, pet odor, and just about anything else!

Dick Brower

Realty Executives

Knoxville, Tennessee

Call us for any questions you may have on how to
treat particular odors or which model to choose.

The OdorFree Trial 30 Day Money Back Guarantee

For 30 days from the date of receipt of an OdorFree generator the buyer may return the unit for any reason. Simply contact Customer Service at 800-558-6723 for an authorization number. Return the unit in the original packaging with the number and a full refund will be issued.

5 Year Warranty

For 5 years from the date of purchase by the original owner, SD International will replace any defective part due to manufacturing defect at no charge. The customer is responsible for labor charges and for safely shipping the unit to the Service Center.

For the first 90 days from original date of purchase, SD International will replace or repair the product without charge to the customer should the unit prove to have a manufacturing defect. Simply call 850-893-9200 for authorization and UPS will pick up the unit at no charge to the customer.

Call 800-558-6723 for additional information.

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Ozone Safety

Ozone generators are for use in unoccupied spaces and not running when people or pets are present. While O3 is both a natural and powerful oxidizer that will eliminate most odors, long-term exposure is not recommended by government agencies because it can contribute to eye and respiratory irritation. More...

These are valid safety concerns because the ozone breaks apart molecules as part of the oxidation process, especially odor causing molecules. It also kills microorganisms like mold and mildew. However, humans and pets are also made up of molecules, so ozone at high levels has the potential to irritate the eyes and respiratory system, especially those with asthma or COPD. Therefore, ozone should be used with caution.

In the recent past, some direct marketing companies sold air purifiers that produce ozone to consumers for use in occupied spaces. This created concern at the EPA, the FDA and the American Lung Association, which resulted in adverse publicity for the ozone industry. For decades prior to that time, ozone had been used commercially in the hotel, apartment, janitorial, water and fire damage remediation industries and many others, while spaces were unoccupied. So the state of California now has ozone restrictions for consumer air purifiers, and industrial ozone cleaners like the OdorFree have special labeling requirements. Beware of any type of air purifier that produces ozone and claims the product is for use in occupied spaces.

High Output Claims

Sellers on the internet often make false claims regarding the performance of their products in order to obtain a sale. Beware of sales claims for ozone generators with very high ozone output at a price that seems to be too good to be true. More…

In the event these units were creating the extremely high levels of output claimed, the ozone would be causing unseen damage to vulnerable materials like speakers, leather furniture, electronics and other materials. Once ozone reaches a certain level, degradation and deterioration of materials begins. Ozone can do great things, but as with any substance, too much or excessive levels will create problems. And extreme levels are not required for permanent odor removal. Safe use and moderation is the key to a successful ozone treatment.

Ozone output levels can vary as a result of air temperature, humidity, barometric pressure and other factors. And there are no set standards or protocols for testing ozone production in milligrams per hour (mg/hr). A high output number is sometimes posted simply to attract buyers. Unfortunately, there is no authority to prevent this type of misinformation from being uploaded and distributed on the web.

The vast majority of portable ozone generators sold in the US for commercial use employ ceramic plates. These machines generally produce ozone at output levels of 300 mg/hr to 2,000 mg/hr for the purpose of permanently removing odors. Mica plates fell into disfavor by most companies decades ago because they were not serviceable. Recently, they have reappeared with internet sellers.

Check the Warranty

All ozone generators require periodic cleaning of the ozone producing elements to continue operating. Beware of units offered on the Internet that cannot be maintained by the buyer because they will stop functioning after a period of time. More…

Many ozone generators have a very short lifespan. Always check the details of the warranty that a manufacturer provides. Ozone can be corrosive and all ozone producing elements build up a film on the plates that dramatically reduces output. Even plates protected by a filter will build up a microscopic film on the plates over time that causes the ozone production to drop. Beware of ozone plates that cannot be removed and cleaned by the end user.

This is especially true of mica plates because the material cannot be cleaned and alignment is very important. So the mica plates have to be permanently built into a handmade assembly for protection. Thus, the mica assembly can become the most expensive component, by far, in the entire unit. Once the inevitable microscopic film builds up on the mica plates or corrosion occurs, ozone output drops dramatically, making it a throwaway product or requiring a costly return to the factory. The most expensive part in the unit will need regular maintenance but cannot be serviced, so the warranty can become somewhat meaningless.

Mark Down Pricing

Some internet sellers would like the potential buyer to assume the regular price is being discounted. Many seller always post a much higher number with a slash mark through it next to the regular selling price. This can mislead the buyer into thinking the unit happens to be on sale and being sold at a bargain price.

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Free 2 Day Delivery

Free UPS Ground Shipping to the U.S. and Canada.

All Ground deliveries arrive in 1-2 business days after ship date to the lower 48 states.